Where does “Летува” come from?

Летува (Belarusian) comes from Lithuanian Lietuvà, from Proto-Slavic Lētuvā.

Ancestry of “Летува”, step by step

StepLanguageWordMeaning
1LithuanianLietuvàLithuania
2Proto-SlavicLētuvā—
Every word from Proto-Slavic Lētuvā →Every word from Lithuanian Lietuvà →